"I don't know if you have people from high school who you're still close with, [but] even if we don't see each other for a long time, it's a connection that we'll have forever," she told People. "Luckily we do check in and we always have each other's backs. It's a really special thing."

Berkley added that she thinks her former co-stars will support her by sitting in the Dancing with the Stars audience, though she pointed out that they are currently all very busy.

"Mark-Paul [Gosselaar] just had a baby, which is the only reason he hasn't been here," she said. "[X Factor USA host] Mario [Lopez] has been travelling. Tiffani [Thiessen] - she just finished working."

Berkley added that it "means so much" to her that her former castmates have been tweeting messages of support.